Question

What is the domain of the function y = StartRoot x EndRoot + 4?

Answer 1

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Answer 2

SOLUTION

TO DETERMINE

The domain of the function

$\sf{}f(x) = \sqrt{x} + 4$

EVALUATION

Here the given function is

$\sf{}f(x) = \sqrt{x} + 4$

Now

f(x) is well defined when $\sqrt{x}$ is well defined

Also $\sqrt{x}$ is well defined when $x \geqslant 0$

Hence f(x) is well defined when $x \geqslant 0$

So f(x) is well defined for all non-negative real numbers

Hence the domain of the function is

$= \sf{} \{ \: x \in \mathbb{R} : \: x \geqslant 0 \: \}$

$\sf{} = \: [ \: 0, \infty \: )$

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LEARN MORE FROM BRAINLY

let f be a function whose domain is

the set of all real number.if f(x) =|x|-x,

what is the range of f

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